STV6888 Datasheet PDF - STMicroelectronics

DESCRIPTION
The STV6888 is a monolithic integrated circuit as sembled in a 32-pin shrink dual-in-line plastic package. This IC controls all the functions related to horizontal and vertical deflection in multimode or multi-frequency computer display monitors.
The internal sync processor, combined with the powerful geometry correction block, makes the STV6888 suitable for very high performance monitors, using few external components.

FEATURES
General
■ ADVANCED I2C BUS CONTROLLED DEFLECTION PROCESSOR DEDICATED FOR HIGH-END CRT MONITORS
■ SINGLE SUPPLY VOLTAGE 12V
■ VERY LOW JITTER
■ DC/DC CONVERTER CONTROLLER
■ ADVANCED EW DRIVE
■ ADVANCED ASYMMETRY CORRECTIONS
■ AUTOMATIC MULTISTANDARD SYNCHRONIZATION
■ VERTICAL DYNAMIC CORRECTION WAVEFORM OUTPUT
■ X-RAY PROTECTION AND SOFT-START & STOP ON HORIZONTAL AND DC/DC DRIVE OUTPUTS
■ I2C BUS STATUS REGISTER

Horizontal section
■ 100 kHz maximum frequency
■ Corrections of geometric asymmetry: Pin cushion asymmetry, Parallelogram
■ Tracking of asymmetry corrections with vertical size and position
■ Fully integrated internal horizontal moiré cancellation and moiré cancellation output

Vertical section
■ 200 Hz maximum frequency
■ Vertical ramp for DC-coupled output stage with adjustments of: C-correction, S-correction for super-flat CRT, Vertical size, Vertical position
■ Vertical moiré cancellation through vertical ramp waveform
■ Compensation of vertical breathing with EHT variation

EW section
■ Symmetrical geometry corrections: Pin cushion, Keystone, Top/Bottom corners separately
■ Horizontal size adjustment
■ Tracking of EW waveform with Vertical size and position and adaptation to frequency
■ Compensation of horizontal breathing through EW waveform

Dynamic correction section
■ Output with vertical dynamic correction waveform for dynamic corrections like focus, brightness uniformity, ...
■ Fixed on screen by means of tracking system

DC/DC controller section
■ Step-up and step-down conversion modes
■ External sawtooth configuration
■ Bus-controlled output voltage
■ Synchronization on hor. frequency with phase selection
■ Selectable polarity of drive signal